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First of all this is in the wrong forums section. Aside from that I am sure a mod will move this 10000000000x asked question.
Now an answer for your question.
Have you tried making a directory in your changes partition called changes?
Try in shell:

Or you can do it noobster style, by creating a "changes" folder in your changes partition (format etc. from above still apply) in konqueror or sumthing, but learning some CLI commands can't hurt. Then reboot.
Good luck.

p.s. don't listen to micked, it doesn't matter where *changes=/dev/sdb3 * in the cheatcode stands as long as its behind the APPEND.